<script>

</script>
<body>
    
</body>
<script>
//     let arr = [1,2,3,4,5,6,7,8]
// console.log(Math.round(123.6))
// console.log(Math.random())
// console.log(Math.ceil(12.5))
// console.log(Math.floor(12.1))
// console.log(Math.max(...arr))
// console.log(Math.min(...arr))
  
//范围随机数
// Math.round(Math.random()*(max-min)+min)
  //获取日期对象
  // var d = new Date()
  // console.log(d)
  // console.log(d.getFullYear())
  // console.log(d.getMonth())
  // console.log(d.getDate())
  // console.log(d.getHours())
  ElementInternals
  Elementelementer
  Elementelementer
  Elementelementer

</script>